visitor hangs while applying textures

[aries_pup]

i created the island, now i'm trying to apply the textures.

when i apply the grass texture it works fine. But when i apply the sand textures over the grass, the visitor will hang.

Now i cannot apply textures properly~

Can help me please?
Thanks~

[wheres my rabbit ?]

if your using your own textures and apply them it generates the transistion textures everytime you places new ones .
leave it be and it shud come back to life